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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A273007 a(n) is the smallest exponent > 1 such that p^a(n) ends with p, where p is the n-th prime.

Table of values

n a(n)
1 5
2 5
3 2
4 5
5 11
6 21
7 21
8 11
9 21
10 11
11 11
12 21
13 6
14 5
15 21
16 21
17 11
18 6
19 21
20 11
21 21
22 11
23 21
24 11
25 21
26 11
27 101
28 21
29 51
30 101
31 101
32 51
33 101
34 51
35 11
36 11
37 21
38 101
39 101
40 101
41 51
42 51
43 51
44 5
45 101
46 11
47 51
48 101
49 101
50 51
51 101
52 51
53 26
54 3
55 21
56 101
57 51
58 51
59 101
60 26
61 101
62 21
63 5
64 51

List of values

[5, 5, 2, 5, 11, 21, 21, 11, 21, 11, 11, 21, 6, 5, 21, 21, 11, 6, 21, 11, 21, 11, 21, 11, 21, 11, 101, 21, 51, 101, 101, 51, 101, 51, 11, 11, 21, 101, 101, 101, 51, 51, 51, 5, 101, 11, 51, 101, 101, 51, 101, 51, 26, 3, 21, 101, 51, 51, 101, 26, 101, 21, 5, 51]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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